Binary theory of electronic stopping

Sigmund, Peter; Schinner, Andreas

doi:10.1016/s0168-583x(01)01162-4

Cited by 183 publications

(115 citation statements)

References 57 publications

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“…The fitting models of Ziegler et al and Paul and Schinner give an understandably good match, whilst the Binary Theory of Sigmund and Schinner [44,45] performs similarly well over the full projectile energy range from 1 keV/amu to 100 MeV/amu. The UCA (Unitary Convolution Approximation, see page 21) of Grande and Schiwietz [49] performs well at higher energies, but significantly underestimates the stopping power for projectile energies below 1 MeV/amu.…”

Section: Empirical Models Of Electronic Stopping Powermentioning

confidence: 78%

The treatment of electronic excitations in atomistic models of radiation damage in metals

Race¹,

Mason²,

Finnis³

et al. 2010

Rep. Prog. Phys.

132

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Abstract. Atomistic simulations are a primary means of understanding the damage done to metallic materials by high energy particulate radiation. In many situations the electrons in a target material are known to exert a strong influence on the rate and type of damage. The dynamic exchange of energy between electrons and ions can act to damp the ionic motion, to inhibit the production of defects or to quench in damage, depending on the situation. Finding ways to incorporate these electronic effects into atomistic simulations of radiation damage is a topic of current major interest, driven by materials science challenges in diverse areas such as energy production and device manufacture.In this review, we discuss the range of approaches that have been used to tackle these challenges. We compare augmented classical models of various kinds and consider recent work applying semi-classical techniques to allow the explicit incorporation of quantum mechanical electrons within atomistic simulations of radiation damage. We also outline the body of theoretical work on stopping power and electron-phonon coupling used to inform efforts to incorporate electronic effects in atomistic simulations and to evaluate their performance.

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Section: Empirical Models Of Electronic Stopping Powermentioning

confidence: 78%

The treatment of electronic excitations in atomistic models of radiation damage in metals

Race¹,

Mason²,

Finnis³

et al. 2010

Rep. Prog. Phys.

132

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“…The experimental error of our measurements arising primarily from the length of the gas cell, and secondarily from purity of the gas and pressure measurement, has been estimated to be 5%. We also included theoretical curves calculated by the PASS code [26], details below. Two options for the equilibrium charge were chosen, since stopping cross sections tend to become increasingly sensitive to the ion charge with increasing atomic number Z 1 [27].…”

Section: Discussionmentioning

confidence: 99%

Energy-loss straggling of 2–10 MeV/u Kr ions in gases

et al. 2013

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Abstract. Measurements have been performed on a time-of-flight setup at the Jyväskylä K130 cyclotron, aiming at energy-loss straggling of heavy ions in gases. Theoretical predictions based on recently developed theory as well as an empirical interpolation formula predict that straggling can be more than ten times higher than Bohr straggling in the MeV/u regime. Our measurements with up to 9.3 MeV/u Kr ions on He, N2, Ne and Kr targets confirm this feature. Our calculations show the relative contributions of linear straggling, bunching including packing, and charge exchange. Our results for stopping cross sections are compatible with values from the literature.

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“…[15], a scaling parameter η in the function h that enforces unitarity in accordance with the Bloch model [17]. However, the UCA model, as most other stopping-power models [19,20], determines the mean electronic energy loss only.…”

Section: A Determination Of Shape Parametersmentioning

confidence: 99%

An analytical energy-loss line shape for high depth resolution in ion-beam analysis

Grande

Hentz

Pezzi

et al. 2007

Nuclear Instruments and Methods in Physics Research Section B:

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The knowledge of the energy-loss distribution in a single ion-atom collision is a prerequisite for subnanometric resolution in depth-profiling techniques such as Nuclear Reaction Analysis (NRA) and Medium Energy Ion-Scattering (MEIS). The usual Gaussian approximation specified by the stopping power and energy straggling is not valid for near surface regions of solids, where subnanometric or monolayer resolution can be achieved. In this work we propose an analytical formula for the line shape to replace the usual Gaussian distribution widely used in low-resolution ion-beam analysis. Furthermore, we provide a simple physical method to derive the corresponding shape parameters. We also present a comparison with full coupled-channel calculations as well as with experimental data at nearly single collision conditions.

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Binary theory of electronic stopping

Cited by 183 publications

References 57 publications

The treatment of electronic excitations in atomistic models of radiation damage in metals

The treatment of electronic excitations in atomistic models of radiation damage in metals

Energy-loss straggling of 2–10 MeV/u Kr ions in gases

An analytical energy-loss line shape for high depth resolution in ion-beam analysis

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